Download or read book The Relative Availability of Soil Nitrogen in Relation to Cropping Systems as Determined by Alkaline Neutral and Acid Hydrolysis written by Charles Franklin Eno and published by . This book was released on 1948 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nitrogen in Agricultural Systems written by James Stuart Schepers and published by ASA-CSSA-SSSA. This book was released on 2008 with total page 994 pages. Available in PDF, EPUB and Kindle. Book excerpt: Review of the principles and management implications related to nitrogen in the soil-plant-water system.

Download or read book Nitrogen Use and Behavior in Crop Production written by L. Fred Welch and published by . This book was released on 1979 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most plants absorbmore nitrogen than any other nutrient. Because the amount needed is so large and easily be lost from many soils, nitrogen is usually the most limiting nutrient for plant growth. Although about 79 percent of the atmosphere is nitrogen, only nitrogen-fixingplants such as legumeswith their associated bacteria are able to use this abundant source. The nonleguminous grain crops must receive supplemental nitrogen to produce satisfactory yields. Until the last few decades the supply of available nitrogen in the soil was increased primarily by legumes and manure. These sources should be used when economically feasible, but many important grain-producing areas of the world must now rely on commercial fertilizer nitrogen. For economic reasons researchers and growers have been interested for many years in improving yields from each unit of nitrogen. Recently, however, the efficient use of nitrogen has become an environmental issue as well, because high nitrate concentrations in water may be harmful to humans, especiali infants, and to livestock. If plants absorb more of the addedfertilizer nitrogen, then less is likely to leach from fields into drinking water. Improving nitrogen efficiency has also become crucial in order to conserve dwinling supplies of natural gas, which is used in large quantities to manufacture nitrogenfertilizers.

Download or read book Nitrogen Availability in Wisconsin Cropping Systems written by Caroline C. Van Schaik and published by . This book was released on 1999 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nitrogen Cycling in Animal Legume and Fertilizer based Cropping Systems written by Glendon Hamilton Harris and published by . This book was released on 1993 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Influence of Cultivation Cropping Systems and Crop Residues on the Content and Distribution of Nitrogen Forms in Soils written by Ebinimi F. A. Burutolu and published by . This book was released on 1985 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nitrogen Fixation in Tropical Cropping Systems written by Ken E. Giller and published by . This book was released on 1991 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen fixation by leguminous plants is especially important when farmers are trying to minimize fertilizer use for cost or environmental reasons. This second edition of the highly successful book, first published in 1991, contains thoroughly updated and revised material on the theory andpractice of nitrogen fixation in tropical cropping systems. The significant research advances in the last ten years on both a fundamental and applied level are covered, including those relating to the classification and description of N2-fixing bacteria and symbioses and the processes ofN2-fixation.

Download or read book Abstracts of Masters Theses written by Ohio State University. Graduate School and published by . This book was released on 1949 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Determination of Potentially Available Nitrogen in Soil by Acid Hydrolysis written by Micah Wei-Ming Leo and published by . This book was released on 1960 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Managing Cropping Systems to Enhance the Active Soil Nitrogen Pool and Control Its Mineralization written by Jose E. Sanchez and published by . This book was released on 2000 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Abstracts of Theses Presented by Candidates for the Master s Degree written by Ohio State University and published by . This book was released on 1949 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Factors Affecting Nitrogen Availability in Conventional and Alternative Agroecosystems written by Wendy Janette Rash and published by . This book was released on 2002 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Relative Availability of Nitrogen in Soils Under Different Treatments and Its Relation to Plant Growth written by Irving Baltz Raeder and published by . This book was released on 1918 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Crop Adaptation to Soils of Varying Acidity Or Alkalinity written by Horace James Harper and published by . This book was released on 1947 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Management of Cropping System and Compost Addition for Enhanced Nitrogen Availability and Carbon Sequestration written by Ann-Marie Fortuna and published by . This book was released on 2001 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of the Illinois Soil Nitrogen Test in Wisconsin Cropping Systems written by Jeffrey T. Osterhaus and published by . This book was released on 2005 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Abstracts of Theses Presented by Candidates for the Master s Degree written by Ohio State University. Graduate School and published by . This book was released on 1949 with total page 774 pages. Available in PDF, EPUB and Kindle. Book excerpt: